Alert archive / Michigan / Flash Flood Warnings in 1996

Flash Flood Warning 5, NWS Grand Rapids, MI

May 10, 1996Berrien County, Cass County, Michigan

NWS Grand Rapids, MI issued this flash flood warning at May 10, 1996, 3:08 AM EDT for Berrien County, Cass County, Michigan. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 10, 1996, 3:08 AM EDT (07:08 UTC)
Expired
May 10, 1996, 8:15 AM EDT
In force
5 hr
Issued by
NWS Grand Rapids, MI
Area
Whole counties

Counties Berrien County, MI, Cass County, MI

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 7.1 hours before the alert went out and 245 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 00:00Z on 1996-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 610 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 00:00Z on 1996-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
610 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
534 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
200 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGRR 100716 COR
FFWGRR
MIC021-027-101215-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
308 AM EDT FRI MAY 10 1996

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  800 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWEST LOWER MICHIGAN

   ...CENTRAL AND SOUTHERN BERRIEN AND CASS COUNTIES

THE FLOOD WARNING FOR BOTH CENTRAL AND SOUTH BERRIEN AND CASS COUNTIES
HAS BEEN EXTENDED TO 800 AM EDT. STATE POLICE IN NEW BUFFALO AND NILES
REPORT 1 1/2 TO 2 FEET OF WATER ACROSS SAYWER ROAD IN SAWYER... IN
ADDITION... THE LEFT EAST BOUND LANE ON INTERSTATE 94 AT EAST ROAD
BETWEEN MILE MARKERS 7 AND 8 WAS UNDER 8 TO 10 INCHES OF WATER. NUMEROUS
REPORTS OF BASEMENT FLOODING HAVE BEEN RECEIVED IN THE BUCHANAN...
SAWYER AND GALIEN AREAS PLUS WATER HAS BEEN REPORTED ACROSS ROADS IN
SEVERAL LOCATIONS. WATER WAS REPORTED RUSHING OUT OF PLOWED FIELDS ONTO
BAKERTOWN ROAD OFF US 12. SOME VILLAGE STREETS IN CASSOPOLIS HAVE
FLOODED... MAINLY IN LOW LYING AREAS.

AT 255 AM EDT... DOPPLER WEATHER RADAR CONTINUED TO INDICATED A BAND OF
RAIN WITH EMBEDDED THUNDERSTORMS ACROSS THIS AREA EXTENDING WEST ACROSS
NORTHERN ILLINOIS.  ADDITIONAL RAINFALL AMOUNTS AROUND AN INCH ARE POSSI
ETHROUGH MID MORNING. RADAR INDICATES THIS BAND IS SLOWLY LIFTING NORTH.


DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD.
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOU TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY... AND
YOU SHOULD MOVE TO HIGHER GROUND.

COR TO EXP TIME
DCZ

&

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 12:03 AM EDTSevere Thunderstorm WarningGRRBerrien42 min
May 10, 12:11 AM EDTFlash Flood WarningGRRBerrien, Cass3 hr
May 10, 8:30 AM EDTFlash Flood WarningGRRBerrien, Cass7 hr
May 10, 2:40 PM EDTFlash Flood WarningGRRBerrien, Cass6 hr

Nearby

Flash Flood Warnings in Michigan, 1996Every flash flood warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.